These dog fence ground stakes are used to fasten the bottom of a fence to the ground. For dogs, we suggest one ground stake every 3 feet or less. The standard installation method would be where you use 6" of fencing overlapped onto the ground, then use these bottom ground stakes to pin that overlapped fencing to the ground.
This prevents dogs from using their noses to push up under the fence. It also adds a dig deterrent; for even more dig protection, overlap 12" or more of fencing on the ground.